Distillatio, distillation, is the alchemical operation of separating a substance by heating it to vapor and then condensing the vapor, thereby isolating the volatile, subtle spirit from the gross, dense residue. It is among the most practically grounded of alchemical operations, corresponding directly to a laboratory technique that was well established in both the Arabic and Latin traditions. The alchemists' distillation apparatus — the alembic, cucurbit, and retort — became iconic symbols of the art itself, and the operation of distillation served as perhaps the clearest bridge between alchemy's practical laboratory work and its symbolic philosophy of purification through separation.

In the alchemical conceptual framework, distillation belongs to the family of separative and purificatory operations alongside sublimation, calcination, and washing. The heating of matter drives off its lighter, more volatile components as vapor, leaving the heavier, fixed components behind as residue. The volatile spirit, once captured and condensed, represents the extracted essence — the active, animating principle freed from its gross material container. The operation could be repeated multiple times (cohobation or circulatio) to achieve greater degrees of purity. Robert Forbes's Short History of the Art of Distillation, which De Jong cites in her bibliography, traces this technique through its Arabic origins to its sophisticated Renaissance development.

In Atalanta Fugiens, Maier incorporates distillation within the broader complex of purificatory operations rather than isolating it as a discrete emblematic subject. De Jong identifies Emblem II's retort imagery as referencing the practical distillation apparatus, while Emblem III's washing metaphor encompasses distillation as one of the operations by which matter is cleansed of its impurities. In the comprehensive catalogue of operations that appears in the discourse of Emblem XXXIX, Maier lists distillatio alongside solutio, coagulatio, sublimatio, ascensio, descensio, calcinatio, and fixatio. The distillation follows the ascent and descent of volatile components and serves to make the matter clear, while what lies on the bottom is made into ashes.

De Jong also identifies distillation imagery in the discourse of Emblem XIV, which references the processes of mercury and describes the distillation procedures by which mercury is dissolved, separated, and recombined. The mercury of the alchemists, which De Jong identifies as the mercurial solvent rather than common quicksilver, was the pre-eminent subject of distillation — its volatile nature made it the natural candidate for repeated distillation cycles designed to refine and exalt its tincturing power.

Maier's characteristic move of collapsing the apparent plurality of alchemical operations into a single governing metaphor applies to distillation as it does to all the other procedures. His reduction of all operations to cooking in Emblem XXXIX's discourse reveals his understanding of distillation as one particular expression of the universal principle that heat, applied with art and patience, separates the pure from the impure and elevates the subtle above the gross. Just as all the chickens return to one mother-hen, all operations return to one conception.

For the general reader, distillation is the operation most closely analogous to modern chemistry. When a distiller heats a fermented liquid to capture its alcohol as vapor and condense it into a purer spirit, the basic principle is the same one that the alchemists applied to their philosophical mercury: heat drives off the essential spirit, leaving behind the dross, and the captured spirit is more potent and refined than the original mixture.

Meanings Across Registers

De Jong shows that alchemical terms operate simultaneously across material, medical, spiritual, and cosmological dimensions.

Alchemical

Separation of volatile essence from gross residue through heating and condensation; the collection of purified spirit in the receiving vessel.

Medical

The extraction of medicinal essences and tinctures from raw plant or mineral matter; the preparation of refined remedies from crude substances.

Spiritual

The careful extraction of essential meaning from the mass of life experience; the distillation of wisdom from the raw material of suffering.

Cosmological

The celestial distillation by which solar heat draws moisture upward to form clouds, returning it as purified rain—nature's alembic.